lawrence. >> of course in a crowd like this, it was so tightly packed with people, those people took the brunt of the explosion, and all the projectiles. >> reporter: a pressure cooker with part of a homemade bomb inside an suv that fizzles in times square in 2010, planted by admitted lone wolf terrorist faisal shaz add now in prison. in boston, authorities are convinced they'll solve the case. but as of now, have no clue whose behind it. >> at this time there are no claims of responsibility. the range of suspects and motives remains wide open. >> so even though there have been more than 2,000 tips so far. it's not enough. the fbi needs the public's help to try to solve this. chris and john, back to you. >> thank you, susan. that part of the investigation still moving forward. >> coming up in the next half hour of "early start" we're going to talk about the pictures, images the investigators are poring through. we're going to talk to tom fuentes, former fbi assistant director, now a cnn contributor. in addition to the investigation this morning, there is still the remembering, and th